Cross-sectional shapes for hollow link chain
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United States of America Patent
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-
Nov 11, 2003
Grant Date -
Feb 13, 2003
app pub date -
Oct 7, 2002
filing date -
Feb 17, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A chain link of hollow construction and substantially uniform thickness, for intertwining with other chain links to form a jewelry chain, has a non-annular cross-section throughout the link with the cross-section being symmetric along a centerline plane through said cross-section. The cross-sectional shape of the link preferably has on each side of the centerline plane, at least two sides that meet at a point of inflection. On each side of the centerline plane, at least one side preferably converges toward said centerline plane. A reduction in manufacturing costs and precious metal used to form the links and therefore the chain is realized by using a non-annular cross-section having such constructional qualities.
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